Alibaba.com offers 650 common cathode led 5mm products. such as free samples, paid samples. There are 650 common cathode led 5mm suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of common cathode led 5mm respectively. Common cathode led 5mm products are most popular in North America, Western Europe, and Domestic Market. You can ensure product safety by selecting from certified suppliers, including 249 with ISO9001, 60 with Other, and 4 with ISO14001 certification.